Meat-chopper.



No. 820,990. PATENTBD MAY 22, 1906.

H. C. SANDER. MEAT CHOPPER.

APPLIOATION FILED JAN. 9, 1905.

\ 2 SHEETS-SHEET l.

Np. 820,990. PATENTED MAY 22, 1906.

H. 0. SANDER.

MEAT GHOPPBR. APPLIoMIoN FILED IAN. 9, 190s.

2 SHEETS-SHEET 2.

WITNESSES: |NVENTOR ATTORNEY.

HENRY C. SANDER, OF NEWARK, NEW JERSEY.

MEAT-CHOPPER.

Specification of Letters Patent.

Patented May 22, 1906.

Application led January 9, 1905. Serial No. 240,164.

To if/ZZ whom, it may concern:

Be it known that I, HENRY C. SANDER, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Meat-Choppers; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit app ertains to make and use the same, reference being had to theaccompanying drawings, and to iigures of reference marked thereon, whichform a part of this specification.

This invention relates to that class of meatchoppers represented by theone shownin the prior patent, No. 756,713, issued April 5, 1904, to JohnA. Sander, the objects of the present improvements being to reducefriction of the knives upon the perforated plates through which the meatis forced or to more widely distribute said friction; to fasten in placeindependently of each other the two perforate plates employed, so thatthe outer one, which is more often changed, can be so changed withouttaking out or removing either the inner plate or the other parts of themachine; to secure a knife which shall have a greater cutting-surface orarea of engagement with the outer plate than it does with the inner one;to secure a knife in which grinding or resharpening will not interferewith its continued use and one which shall present its best cutting edgeto the outer plate, and to obtain other advantages and results, some ofwhich may be hereinafter referred to in connection with the descriptionof the working parts.

The invention consists in the improved meat-chopping machine and in thearrangements and combinations of parts of the same, all substantially aswill be hereinafter set forth, and nally embraced in the clauses of theclaim.

Referringto the accompanying drawings, in which like figures ofreference indicate corresponding parts in each of the several views,Figure 1 is a side elevation of my improved machine partly in section.Eig. 2 is a front end view of the same, the outer perforate plate beingremoved; and Fig. 3 is an edge view of the cutter detached.

In said drawings, 2 indicates the body portion of the machine, providinga tapering passage 4 for the cutting and feeding parts hereinafterdescribed and a hopper 5 at the upper side of the rear end of saidpassage for introducing meat. The larger or forward end of the saidpassage 4 receives inner and outer perforate plates 6 7, respectively,located at opposite ends of a more sharply ilaring or beveled part 8 ofthe body portion. The side walls of the chamber formed between saidplates 6 and 7, which walls are on the inside of the more sharplyinclined or abruptly-flaring part, are formed on lines disposed withrelation to the longitudinal axis of the body at a greater angle fromsaid axis than the gently inclined or flaring lines of the walls of thechamber 4. Thus the meat in the chamber 4 because of the proportions ofthe interior parts will be compactly forwarded against the interiorperforated plate to insure a proper comminution, and there will be noback movement of the meat into the hopper, but the proper inclination ofthe walls of the chamber 4 is not such as I have found most efficientfor the walls of the cutter-chamber between the plates 6 and 7. I havediscovered that when the inclination of the walls is the same in theintermediate chamber between said plates as those of the chamber 4 thereis a gorging of the meat in the latter chamber, which greatly retardsthe movement of the meat, and I have discovered that by abruptly flaringthe walls of the intere mediate chamber and extending the terminal edges30 of the cutter-arms 27 accordingly there is a material increase in thecapacity of the machine. The said inner plate 6 fits against the wallsof the body portion at the angle of the interior wall formed at thesmaller end of said sharply-flared portion 8 and is held againstrotation by a key-screw 9, inserted through the walls of the body, asshown. The other or outer plate 7 has its edges at right angles to itsface and sets into an annular recess 10 at the outer end of saidsharply-flared portion 8, being keyed therein by any suitable means,suchas a radial lug 11 and slot 12. Said outer plate 7 is furthermoreheld against outward displacement by means of a ring 13, threaded toscrew on the outer part of the body portion, as at 14, and having aflange 15, adapted to extend inward over the edges of the body portionand engage the plate 7 near its edges, as shown. The plates 6 and 7 liea little apart to receive IOO ment of the intermediate cutter more freeto` act in connection with the cutting operations at the inner and outeredges. a

A shaft 16 extends longitudinally and centrally through the passage 4,perforated plates 6 7, and out through the rear wall 17 of the bodyportion, as shown in Fig. 1. The body portion of the machine issupported by standards of any suitable construction, such as indicatedby reference-figure 18 in the drawings, and the shaft 16 preferably hasa bearing 19 in apost or standard 20, said shaft being driven by abelt-pulley (not shown) or any other suitable means. Upon the said shaft16 at the side of its bearing 19 next the body portion of the machine isa xed collar 21, having at its end next the body portion of the machineclutch means for engaging the end of a screw 22, which is adapted to beslipped upon said shaft to rotate therewith inside the passage 4.Obviously antifriction-bearings of any well-known form may be providedbetween the said collar 21 and bearings 19 or at any other suitablepoint.

At the forward or large end of the machine the screw 22 carries aknife-plate 23, as specifically shown and described in theabovementioned prior patent and which engagesv the inner surface of theinner plate 6. On the outer side of said plate 6, and thus between theinner and outer plates described, is a cutter 24, having its hub 25fitted on a squared portion 26 of the shaft 16 and providingradially-projecting arms 27. Each of said arms is transversely curved,as shown more particularly in Fig. 3, and preferably arranged at anangle or obliquely, the obliquity being such as to bring the forwardedge of each arm against the outer plate. The o ject of this is to bringthe most effective cutting edge 28 of the arms against the outer plate7, where all the meat must be cut as it passes. The inner plate 6 hascutting-knives on both its opposite sides, and obviously, since the meatis all cut by the knife 23 as it enters the perforations of such innerplate the work of the inner edges 29 of the cutter-blades 27 A againstsaid inner plate is not very heavy.

The edges of the arms 27 of the cutter project beyond the faces of thehub 25, as clearly shown in the drawings, so that as they are grounddown in sharpening the cutter they can still freely engage theperforated plates. Furthermore, the ends of the blades 27 are beveled orslanted, as at 30, in conformity to the walls 8 of the body portion, sothat they have a longer reach upon the outer perforated plate than uponthe inner. This also increases the amount of cutting done at the outerplate 7 in comparison with that done at the inner or rear plate 6,enabling the meat to be more perfectly comminuted and preventing backpressure upon the inner plate by reason of the impeded escape of meatthrough the outer plate.

Outside the cutter 34is a bushing or washer 31 upon the shaft 16,engaging at its inner end the hub of the cutter and fitting an aperturein the outer perforated plate 7. Beyond this bushing or washer 31 is anut 32, screwing upon the shaft, and, obviously, by tightening up thisnut the cutter 24 will be forced against the inner perforated plate 6,which in turn is forced against the end of the feedingscrew 22, the endthrust or friction being taken at the other end of the machinel betweenthe bearing 19 and clutch member 21.

The outer perforated plate 7, which fits loosely over the bushing 31, isheld by means of its ring 13, and by this construction the outer platecan be removed or changed independently of the rest of the machine andwithout disturbing the clamped relation of the rest of said parts. Thisis of great practical advantage, since in the use of the machine theinner plate is seldom changed, but the outer plate is more often changedto secure different degrees of iineness of the meat. Furthermore, as thecutter-blades are ground or worn away by use the outer plate 7 can beforced inward to follow said blades and retain a cutting engagementtherewith. Again, a saving of friction is gained over what is shown inthe prior patent referred to in that there the outer plate was clampedbetween two rotating members, while in this case one of the members-towit, the outer one or collar 13-is stationary.

By increasing the flare of the body part 2 of my improved machine, as at6, and placing the two plates 6 7 at opposite ends of said flaringportion of the passage-way for the meat I insure a more ready and freedischarge of the meat, so that it is delivered in better condition. Itwill be noted that the inner plate 6 has large apertures through whichthe meat passes readily, and, furthermore, there are knives on bothsides of this plate to do the cutting, so that the forward prpgress ofthe meat is not seriously impeded.

en, however, the forward plate is reached, such plate has much smallerperforations, through which the meat must be forced with moredifficulty, and there is a knife only at its inner side. The meatheretofore has therefore been obstructed in its passage here and thecapacity of the machine reduced. By my improved construction, however,the area of the outer plate is greatly increased and additionalperforations secured-in practice about four hundred moreand hence themeat can more readily escape. Also the IOO IIO

screw and an inner perforated plate and a y cutter upon said shaft, thesaid cutter and feed-screw being adapted to turn therewith,

means for holding the perforated plate sta-' tionary, means upon the endof said shaft for clamping the cutter and inner plate and feedscrewtogether thereon, an outer perforated plate at the opposite side of thecutter from the inner plate centrally apertured to loosely receive thesaid clamping means independent thereof, and means upon the body portionfor clamping said outer plate against the cutter.

2.l In` a meat-chopper, the combination with a tubular body portion, ofa shaft extending longitudinally therethrough, a feedscrew and an innerperforated'plate and a cutter upon saidshaft, the said cutter andfeed-screw being adapted to turn therewith, means for holding theperforated plate stationary, an outer perforated plate at the oppositeside of the cutter from said inner plate and being centrally apertured,a cylindrical washer upon said shaft extending through said aperture ofthe outer plate, a nut outside said washer, and means upon the bodyportion for clamping said outer plate against the cutter.

3. In a meat-chopper, the combination with a chambered body portion, ashaft extending therethrough, a feed-screw on said shaft and an innerperforated plate, of a large outer perforated plate stationed at the endof said body, a cutter on said shaft between said perforated plates, andclamping means inde- .pendent of the large plate, lying within andextending through said outer plate, and means at the outside of saidouter plate to force the. feed-screw, inner plate and intermediatecutter in close operative relation.

4L. In a meat-chopper, the combination with the chambered body of anoperatingshaft, a feed-screw, an inner perforated plate,

and an outer perforated plate, of a 'cutter arranged on said shaftbetween said plates, and means clamping the screw and cutter firmlyagainst the opposite sides of the inner perforated plate said clampingmeans extending through the outer perforated plate and being adapted tobe manipulated at the outer side thereof.

5. In a meat-chopper, a body having a gently enlarging or flaringinterior passage an near one end having an increase in the angle of itsflaring surfaces, an inner perforated plate set at the angle formed bythe gentlyflaring and increased flaring lines, an outer plate set at thelarge end of the flaring body, a shaft, a feed-screw arranged at theinside of the inner plate, a cutter on said shaft intermediate of saidperforated plates and having its ends extend to the flaring walls of thechamber between said plates and means for fastening the feed-screw andcutter upon said shaft.

6. In a meat-comminuting machine, the combination with a chambered bodyhaving gently-flaring interior walls, with a hopper at its upper side,and a more sharply flaring large end, the flaring walls of which areformed on lines at angles to the gently-flaring walls, perforated platesarranged at right angles to the longer axis of the fiaring body,

said plates being disposed one at the larger p end and the other at thesmall end of the sharply-flaring part and being separate to form anintermediate chamber, a feed-screw, a shaft extending from thefeed-screw through the perforated plates, the outer perforated platebeing centrally apertured, a cutter arranged between the perforatedplates, on said shaft, and clamping means arranged on said shaft andextending through the aperture of the outer plate and adapted to bemanipulated from the outside of said outer plate, substantially as setforth.

In testimony that I claim the foregoing I have hereunto set my hand this22d day of December, 1904.

HENRY C. SANDER.

Witnesses:

CHARLEs H. PEEL, RUssELL M. Evnimrr

